During rainy times, the impact of outdoor vision systems gets considerably decreased owing to visibility barrier, distortion, and blurring instigated by raindrops. So, it is essential eradicate from images for ensuring reliability system. To achieve this, several rain removal studies have been performed in recent days. In this view, paper presents a new Faster Region Convolutional Neural Networ...

In this paper results from the evaluation of several state-of-the-art pansharpening techniques are presented for the VNIR and SWIR bands of Sentinel-2. A procedure for the pansharpening is also proposed which aims at respecting the closest spectral similarities between the higher and lower resolution bands. The evaluation included 21 different fusion algorithms and three evaluation frameworks b...

The use of a single index to assist in quality control procedures of X-ray television fluoroscopy systems was investigated. A single quality index was devised incorporating a measure of threshold contrast detail detectability (TCDD) performance and taking into account image intensifier input kerma rate, field size, differences in radiation beam quality, and pulsed fluoroscopy. This was applied ...

conclusions modern cts with the innovative technology of a built-in tin filter allow for significant reduction of radiation exposure in patients with suspected urolithiasis by optimizing the x - ray spectrum with image quality as high as in standard ct devices results ct examinations of a total of 143 patients were assessed. dlp of force was 56% and 55% lower in comparison to as+ and flash, (74...

Under poor light conditions or improper acquisition settings, the image degrades due to low contrast, brightness and suffer visual quality of picture. An enhancement is required manipulate scale pixel intensity for significant improvement in image. This paper proposed method gamma correction with a self-adaptive value accordance After transformation HSI (hue, saturation intensity) channel, mult...

Image fusion is the combination of two or more different images by using suitable algorithms to form an output image. It provides a useful tool to integrate multiple images into a composite image. In this paper, we present an approach that uses the principle component analysis (PCA) along with the selection of maximum pixel intensity to perform fusion. The entropy, mutual information and the un...

With the increasing demand for image-based applications, the efficient and reliable evaluation of image quality has increased in importance. Measuring the image quality is of fundamental importance for numerous image processing applications, where the goal of image quality assessment (IQA) methods is to automatically evaluate the quality of images in agreement with human quality judgments. Nume...

In recent years the structural similarity index has become a de facto standard among image quality metrics. Made up of three components, this technique assesses the visual impact of changes in luminance, contrast and structure in an image. Present applications of the index include image enhancement, video compression, video quality monitoring and signal encoding. As its status continues to rise...

A concept of image quality metamerism as an expansion of conventional metamerism defined in color science is introduced, and it is applied to segment similar color areas in a cultural property. The image quality metamerism can unify different image quality attributes based on an index showing the degree of image quality metamerism proposed. As a basic research step, the index is consisted of co...